Chromosome painting between human and lorisiform prosimians: Evidence for the HSA 7/16 synteny in the primate ancestral karyotype
Identifieur interne : 001100 ( Main/Exploration ); précédent : 001099; suivant : 001101Chromosome painting between human and lorisiform prosimians: Evidence for the HSA 7/16 synteny in the primate ancestral karyotype
Auteurs : Wenhui Nie [République populaire de Chine] ; Patricia C. M. O'Brien [Royaume-Uni] ; Beiyuan Fu [Royaume-Uni] ; Jinhuan Wang [République populaire de Chine] ; Weiting Su [République populaire de Chine] ; Malcolm A. Ferguson Mith [Royaume-Uni] ; Terence J. Robinson [Afrique du Sud] ; Fengtang Yang [République populaire de Chine, Royaume-Uni]Source :
- American Journal of Physical Anthropology [ 0002-9483 ] ; 2006-02.
English descriptors
Abstract
Multidirectional chromosome painting with probes derived from flow‐sorted chromosomes of humans (Homo sapiens, HSA, 2n = 46) and galagos (Galago moholi, GMO, 2n = 38) allowed us to map evolutionarily conserved chromosomal segments among humans, galagos, and slow lorises (Nycticebus coucang, NCO, 2n = 50). In total, the 22 human autosomal painting probes detected 40 homologous chromosomal segments in the slow loris genome. The genome of the slow loris contains 16 sytenic associations of human homologues. The ancient syntenic associations of human chromosomes such as HSA 3/21, 7/16, 12/22 (twice), and 14/15, reported in most mammalian species, were also present in the slow loris genome. Six associations (HSA 1a/19a, 2a/12a, 6a/14b, 7a/12c, 9/15b, and 10a/19b) were shared by the slow loris and galago. Five associations (HSA 1b/6b, 4a/5a, 11b/15a, 12b/19b, and 15b/16b) were unique to the slow loris. In contrast, 30 homologous chromosome segments were identified in the slow loris genome when using galago chromosome painting probes. The data showed that the karyotypic differences between these two species were mainly due to Robertsonian translocations. Reverse painting, using galago painting probes onto human chromosomes, confirmed most of the chromosome homologies between humans and galagos established previously, and documented the HSA 7/16 association in galagos, which was not reported previously. The presence of the HSA 7/16 association in the slow loris and galago suggests that the 7/16 association is an ancestral synteny for primates. Based on our results and the published homology maps between humans and other primate species, we propose an ancestral karyotype (2n = 60) for lorisiform primates. Am J Phys Anthropol, 2006. © 2005 Wiley‐Liss, Inc.
Url:
DOI: 10.1002/ajpa.20299
Affiliations:
- Afrique du Sud, Royaume-Uni, République populaire de Chine
- Angleterre, Angleterre de l'Est
- Cambridge, Pékin
- Université de Cambridge
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Anthropol.</title><idno type="ISSN">0002-9483</idno><idno type="eISSN">1096-8644</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2006-02">2006-02</date><biblScope unit="volume">129</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="250">250</biblScope><biblScope unit="page" to="259">259</biblScope></imprint><idno type="ISSN">0002-9483</idno></series><idno type="istex">7821160D34C50DC49CA49C1124BD0F373C0A27FA</idno><idno type="DOI">10.1002/ajpa.20299</idno><idno type="ArticleID">AJPA20299</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0002-9483</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>chromosome evolution</term><term>in situ hybridization</term><term>phylogeny</term><term>slow loris</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Multidirectional chromosome painting with probes derived from flow‐sorted chromosomes of humans (Homo sapiens, HSA, 2n = 46) and galagos (Galago moholi, GMO, 2n = 38) allowed us to map evolutionarily conserved chromosomal segments among humans, galagos, and slow lorises (Nycticebus coucang, NCO, 2n = 50). In total, the 22 human autosomal painting probes detected 40 homologous chromosomal segments in the slow loris genome. The genome of the slow loris contains 16 sytenic associations of human homologues. The ancient syntenic associations of human chromosomes such as HSA 3/21, 7/16, 12/22 (twice), and 14/15, reported in most mammalian species, were also present in the slow loris genome. Six associations (HSA 1a/19a, 2a/12a, 6a/14b, 7a/12c, 9/15b, and 10a/19b) were shared by the slow loris and galago. Five associations (HSA 1b/6b, 4a/5a, 11b/15a, 12b/19b, and 15b/16b) were unique to the slow loris. In contrast, 30 homologous chromosome segments were identified in the slow loris genome when using galago chromosome painting probes. The data showed that the karyotypic differences between these two species were mainly due to Robertsonian translocations. Reverse painting, using galago painting probes onto human chromosomes, confirmed most of the chromosome homologies between humans and galagos established previously, and documented the HSA 7/16 association in galagos, which was not reported previously. The presence of the HSA 7/16 association in the slow loris and galago suggests that the 7/16 association is an ancestral synteny for primates. Based on our results and the published homology maps between humans and other primate species, we propose an ancestral karyotype (2n = 60) for lorisiform primates. Am J Phys Anthropol, 2006. © 2005 Wiley‐Liss, Inc.</div></front></TEI><affiliations><list><country><li>Afrique du Sud</li><li>Royaume-Uni</li><li>République populaire de Chine</li></country><region><li>Angleterre</li><li>Angleterre de l'Est</li></region><settlement><li>Cambridge</li><li>Pékin</li></settlement><orgName><li>Université de Cambridge</li></orgName></list><tree><country name="République populaire de Chine"><noRegion><name sortKey="Nie, Wenhui" sort="Nie, Wenhui" uniqKey="Nie W" first="Wenhui" last="Nie">Wenhui Nie</name></noRegion><name sortKey="Nie, Wenhui" sort="Nie, Wenhui" uniqKey="Nie W" first="Wenhui" last="Nie">Wenhui Nie</name><name sortKey="Su, Weiting" sort="Su, Weiting" uniqKey="Su W" first="Weiting" last="Su">Weiting Su</name><name sortKey="Wang, Jinhuan" sort="Wang, Jinhuan" uniqKey="Wang J" first="Jinhuan" last="Wang">Jinhuan Wang</name><name sortKey="Yang, Fengtang" sort="Yang, Fengtang" uniqKey="Yang F" first="Fengtang" last="Yang">Fengtang Yang</name></country><country name="Royaume-Uni"><region name="Angleterre"><name sortKey="O Brien, Patricia C M" sort="O Brien, Patricia C M" uniqKey="O Brien P" first="Patricia C. 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